The differential and transfer case are the parts of a 4x4 or all-wheel-drive vehicle nobody thinks about until they're loud. We perform differential service and transfer case service in Olathe — draining the old gear oil, inspecting the internals and refilling with the correct specification fluid.
Gear oil breaks down under heat and load, and towing, hauling or heavy winter four-wheel-drive use accelerates it. Fresh fluid at the right interval is routine maintenance; a whining differential that has been run on burnt oil is a rebuild.
Come in for a whine or howl that changes with vehicle speed, a clunk shifting into or out of four-wheel drive, vibration from under the middle or rear of the vehicle, or dark gear-oil seepage around the differential cover or transfer case seals.
We inspect what comes out with the old fluid — metal in the oil tells us a lot — and tell you honestly whether you're looking at maintenance or a repair. Call (913) 850-1750.